硝酸

Barium carbonate,trontium carbonate,potassium carbonate,barium sulphate precipitated,barium nitrate,barium chloride,industrial sodium sulfide,sulphur,sodium thiosulphate, thiourea,melamine,ammonium bicarbonate (food grade,lasting effect,big granular grade).

&五洲&牌，碳酸钡碳酸锶，碳酸钾，硫酸钡，硝酸钡，氯化钡，工业硫化钠，硫磺，硫代硫酸钠，硫脲，三聚氰胺，&青山&牌：碳酸氢铵(食品级，长效型，大颗粒)。

The processing principle for the preparation of tribasic lead sulphate from bismuth hydrometallurgy waste residue by ammonium hydrogen carbonate transformation-nitric acid leaching-lead deposition with sulphuric acid-sodium hydroxide synthesis is introduced.

介绍了铋冶炼浸渣采用碳酸氢铵转化—硝酸浸出—硫酸沉铅—氢氧化钠反应合成三碱式硫酸铅的工艺原理。

Coordination compound ; Trihydrated Yttrium Nitrate ; Crown ether 18C6; Phase equilibrium.

配合物；三水合硝酸钇；冠醚18C_6；相平衡

Three methods for trimellitic anhydride production including MGC,nitric aid oxidation,and liquid phase oxidation by air were compared.

比较了生产偏苯三酸酐的3种方法：芳香醛水溶液空气氧化法、硝酸氧化法和液相空气氧化法。

A new production technology of high-quality trimellitic anhydride with the liquid-phase air-oxidation from 1,2,4-trimethylbenzene was developed.

偏苯三酸酐的生产方法主要有偏三甲苯气相空气氧化法、偏三甲苯液相硝酸氧化法、偏三甲苯液相空气氧化法和间二甲苯甲醛液相空气氧化法。

The thermal decomposition characteristics of trimethylolethane trinitrate have been investigated by means of pressure DSC.

利用高压DSC研究了含能材料三羟甲基乙烷三硝酸酯的热分解特性，结果表明：尽管TMETN与硝化甘油结构相似，但TMETN的分解特性完全不同于硝化甘油。

Cell activity were examined by trypan blue staining,morphological changes were examined by fluorescence microscope,and cell cycle were measured by flow cytometry.

结果表明，硝酸镧能够降低MDCC-MSB1的细胞活性，能够引起典型的凋亡形态学变化及细胞周期的改变，并呈现细胞凋亡的细胞型，变化均呈现时间-剂量效应。

A salt of tungstic acid .

亚硝酸形成的盐或酯。

The undraped human figure,sometimes allegorical.

无丙烯酸结构式的人体画像，有时具有硝酸异辛酯意义。

MAS precursor powders were uniaxially pressed at 100 MPa employing a lubricated steel cylindrical mold. After sintering at 1450℃ for 2 hours, Single-phase cordierite ceramic is prepared, and its relative density is 95.1%.

以硫酸铝、硝酸镁和硅溶胶为原料，采用溶胶-凝胶法，制得MAS先驱体粉末，XRD表明，该粉末经1300℃的热处理后，完全转变为堇青石。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。